Tie-plate



Fe. 11, 193. G. w. DREW 1,746,526

' TIE PLATE Filed Aug. 22. 1928 g 5 INVENTOR. 620F615 h/flffm/ Patented Feb. 11, 1930 PATENT GEORGE W; DREW, F OAKLAND, CALIFORNIA TIE-PLATE Application filed August 22, 1928. Serial No. 301,221.

The invention forming the subject matter of this application relates to tie plates as used in the securing of rails to railroad ties.

An object of the invention is to provide a tie plate which is provided with means for preventing the lateral creeping of a rail mounted thereon.

A further object of the invention is to provide a tie plate which has means thereon for no engaging a tie for preventing movement of the tie plate with respect to the tie.

A still further object of the invention is to provide a tie plate which has means on the lower surface thereof for engaging a tie for preventing movement of the tie plate longitudinally of the tie, and which has means on the upper surface thereof for engaging the rail for preventing a lateral movement of the rail.

Another object of the invention is to provide a tie plate which has projecting teeth on the bottom surface thereof, which teeth are adapted to engage a tie for preventing movement of the tie plate longitudinally of the tie,'and which is provided with a shoulder on the top surface thereof for engaging the outside edge of the base flange of arail in such a manner as to prevent a lateral outward movement of the rail.

With the foregoing and other objects in view which will be made manifest inthe fol lowing detailed-description and specifically pointed out in the claim,- reference is had to the accompanying drawing for the lllustrative embodiment of the invention, wherein:

Figure 1 is a perspective view of my invention, showing the manner in which the tie plate and the rail are secured to the tie;

Figure 2 is a perspective v1ew showing the 40 upper surface of the tie plate of my invention; and

Figure 3 is a perspective view showlng the bottom surface of the tie plate of my invention.

Tie plates, as now used in the laying of railroad tracks, consist of a flat plate which is disposed between the top surface of the railroad tie and the bottom surface of the base flange of a rail. Suitable apertures are 0 provided in these tie plates, thru which railroad spikes are driven into the tie. The head of the spike engages the upper surface of the base flange of the rail, and in this manner secures the rail and the tie plate to the tie. However, it is a common occurrence for the rails to spread, due to the fact that the spikes may become broken, or they may become loose in the tie. This spreading of the railroad rails has been the cause of a great many railroad accidents. In order to provide a means for eliminating rail spreading, I have designed a tie plate'which is provided with a means other than the railroad spike for preventing movement of the tie plate with respect to the tie and also for preventing any movement of the rail with respect to the tie plate. r I

In carrying out my invention, I make use of a tie plate, indicated in its entirety by the reference number 5, which tie plate 5 is constructed of a flat metal plate, the length of which is equal to the Width of a tie, and of a width greater than the width of the base flange of a rail. The'tie plate 5 is positioned on a tie 6 in such a manner as to support a rail 7 on the upper face thereof. A. plurality of-suitable teeth 8 project from the lower surface of the tie plate 5 for securing the same to the tie 6. ,The teeth 8 are formed so as to extend across the bottom surface of the tie plate 5, so that when the tie plate 5 is placed in position upon the tie 6 in the manner shown in Figure 1, the teeth 7 will engage the upper surface of said tie and extend transversely thereacross.

Tie plate 5 is provided on its upper face with channels 19 intermediate the teeth 8 formed on the under side of the tie plate. These channels form water traps for draining moisture from between the bottom of the rail base and the plate for the rapid evaporization thereof by the circulation of the air through the traps, thus extending the life of the rail and the plate against deterioration thereof by rust.

.Means are provided on the upper surface of the tie plate 5 for preventing the rail 7, which is supported thereon, from spreading in a direction longitudinally of the tie 6, Said means comprises an integral shoulder projection 9, which extends entirely across the upper surface of the tie plate 5 and parallel to the rail 7 The shoulder 9 is provided with a vertical face 11, Which vertical face abuts against an edge 12 of the base flange 13 of the rail 7, and prevents a lateral movement of the rail 7. Suitable apertures are provided in the tie plate 5, which apertures are indicated by the numeral 14. The apertures 14 are adapted to receive spikes 15, which spikes secure the rail 7 and the tie plate 5 to the tie 6. As shown in the accompanying drawing, the tie plate is provided with four apertures, two apertures being positioned on each side of the rail 7. These apertures 14 are positioned in such a manner that the inside edges 16 thereof will be flush with the outside edge 12 and the inside edge 17 of the base flange '13 on the rail 7. Now, when the spikes 15 are driven into the tie 6 thru the tie plate 5, the shank portion of the spikes will abut against the edges 12 and 17 of the base flange 13, and the heads 15 of the spikes will engage the top surface 18 of the base flange 13 and hold the rail firmly secured to the tie plate 5 and the tie 6. Each tie is provided with two tie plates for supporting the parallel rails. The tie lates which are used on both rails are simi ar and are similarly placed on the opposite ends of the rail 7, the tie plate oposite to the one shown in Figure 1 of the rawing being placed upon the tie in such a manner that the shoulder, 9 'will also engage and abut the outside edge of the base flange of the opposite rail, so that when-both tie plates are secured in their respective positions on the tie 6, they will prevent the rails from spreading away from each other.

The laying of the tie plate 5 consists in first placingthe tie plate upon the tie 6 so that then driven thru the apertures 14 in the tie.

plate 5 and into the tie 6 until the heads of said spikes engage the upper surface 18 of the base flange 13, thereby firmly securing the rail and the tie plate to the tie. As each tie in the track section is provided with similar tie lates, it will be clearly seen that the rails WilFbe firmly secured to the ties and prevented from spreading at any point thereof.

I am aware that some changes may be made in the general arrangement and combination of the several parts of the tie plate, as well as in the details of construction thereof without departing from the scope of the present invention, as set forth in the foregoin specification, and as defined in the foflowing claim. Hence, I do not limit my invention to .traps spaced from the rail abutting flange and so positioned as to lie under the base of a rail when spiked to the tie, said water traps comprising a plurality of spaced channels extending transversely across the entire upper surface of said tie plate.

In testimony whereof I aflix my signature.

GEORGE W. DREW. 

